Posting on Instagram her mother said: "So they didn’t get through but so proud of my daughter @missyykeating and @georgiagaffney who were brave enough to put themselves out there on @thevoiceuk ," the mother of three said.
The pair had got through to the Battles stage which is where coaches pick singers to have on their teams.
They knew that will.i.am and Jennifer Hudson's teams were already full.
GGMK just had to impress Tom Jones and Olly Murs for one of the final two places.
Olly Murs was so close to hitting the buzzer but failed to do so in the end leaving the pair eliminated.
Speaking about the experience her mother said: "I went over with her. I was kind of nervous because so much goes on before the actual audition. There was a lot involved, but it is a great experience."
Missy Keating has been taking acting lessons for a number of years, and Connolly said she thinks her daughter will choose acting over music.
"I think she will ultimately always go back to acting," she continued. "I think singing is something she enjoys.
So did I encourage her? Yeah. I was like, follow your dreams, but I have a funny feeling when she does her Leaving Cert, she will go back to acting." her mum said.
Meanwhile, her father Ronan Keating was on stage at Wembley Stadium in London this weekend with his
The Voice UK continues on Virgin Media One and ITV next Saturday.